The XS Sight Systems Minimalist OR Sights are engineered specifically for Glock 19 MOS pistols providing simple and low-profile backup iron sights that maximize visibility through your optics window. These optic-ready sights eliminate the need for height calculations giving you the perfect co-witness out of the box.XS Minimalist Optic Ready Sights for Glock 19 MOSTritium front sight for enhanced low-light visibilityBlack nitride surface treatment for durability and corrosion resistanceBlacked-out serrated rear sight to minimize glareCNC machined steel construction for precision and reliabilityDesigned for seamless co-witness with mounted opticsIdeal for tactical applications concealed carry and competitive shooting where backup iron sights are essential for optic-equipped Glock 19 MOS pistols.